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14K White Gold Square Modified Diamond Ring
Located in Laguna Beach, CA
Ladies' engagement ring with square modified brilliant center diamond in 14k white gold setting
Category
Mid-20th Century Engagement Rings
Materials
Diamond, 14k Gold, White Gold
Platinum Solitaire Diamond Ring Set with 0.62ct H/VVS2 Square Modified Diamond
By Unbranded
Located in London, GB
An elegant Diamond ring for your engagement, this Platinum ring features a 0.62ct Square Brilliant
Category
2010s British Engagement Rings
Materials
Diamond, Platinum
1 pc Natural Diamond - 0.50 ct - Radiant - I - VS1- GIA Certificate
Located in רמת גן, IL
Natural Cut-Cornered Rectangular modified diamond in a 0.50 carat I VS2 with Beautiful cut and
Category
2010s Israeli Loose Gemstones
Materials
Diamond
Sparkling 1pc Natural Diamond with 0.70ct Cushion D IF IGI Certificate
Located in רמת גן, IL
A sparkling natural cut cushion modified diamond in a 0.7 carat D IF with excellent cut. This
Category
2010s Israeli Engagement Rings
Materials
Diamond
GIA Certified 1.14 Carat Brown - Green Yellow Diamond 18 KT Gold Engagement Ring
Located in London, GB
- Cornered rectangular modified Diamond situated in the center of the ring featuring 0.80 Carat clarity SI1
Category
2010s British Modern Engagement Rings
Materials
Diamond, White Diamond, Yellow Diamond, Brown Diamond, Gold, White Gold,...
Peter Suchy GIA Certified 3.25 Carat Diamond Yellow Gold Stud Earrings
By Peter Suchy
Located in Stamford, CT
cut diamond , U-V SI2 approx. 1.57cts GIA Certificate # 5202867825
1 cushion modified diamond, N I
Category
21st Century and Contemporary Stud Earrings
Materials
Diamond, Gold, 18k Gold, Yellow Gold
GIA Certified 12.45 Carat Fancy Yellow Cushion Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Chicago, IL
Unparalleled luxury with our remarkable GIA Certified 12.45 Carat Cushion Modified Diamond. Graced
Category
2010s Unknown Contemporary Engagement Rings
Materials
Diamond, White Diamond, Yellow Diamond, 18k Gold, Yellow Gold, Platinum
FRED - Glory ring in white gold and diamonds
By Fred
Located in PARIS, FR
and timeless model.
- Condition: excellent.
- Finger size: 53 (can be modified)
- Diamond weight
Category
Early 2000s French Fashion Rings
Materials
Diamond, 18k Gold, White Gold
Peter Suchy GIA Certified 1.42 Carat Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Peter Suchy Workshop.
1 cut corner natural fancy deep brownish yellow rectangular modified diamond
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, Yellow Diamond, Brown Diamond, Platinum
Glamorous 18k Yellow Gold Solitaire Ring w/ 1.02 Carat Natural Diamonds IGI Cert
Located in רמת גן, IL
A classic solitaire engagement ring with a dazzling 1.02-carat cushion-modified diamond. The
Category
2010s Israeli Engagement Rings
Materials
Diamond, 18k Gold, Yellow Gold
1pc. Glittering 4.01 Cushion Modified Brilliant Natural Diamond
Located in רמת גן, IL
This stunning diamond is sure to turn heads. It features a sparkling 4.01 carat cushion modified
Category
2010s Israeli Loose Gemstones
Materials
Diamond
Classic 1ct. Square Modified Brilliant Solitaire Diamond Ring
Located in רמת גן, IL
Product Details:
~Metal: 18K Yellow Gold
Main stone:
1ct square modified brilliant natural
Category
2010s Israeli Loose Gemstones
Materials
Diamond
Exquisite 1.94ct Cushion Modified Brilliant Diamond Stud Earrings
Located in רמת גן, IL
and steal the show. The centerpieces are two dazzling 1.61 carat cushion modified brilliant diamonds
Category
2010s Israeli Stud Earrings
Materials
Diamond, 18k Gold, White Gold
1pc. Sparkling 1.5 Carat Square Modified Brilliant Natural Diamond
Located in רמת גן, IL
This is a 1.5 carat G VS1 very good polish and good symmetry square modified brilliant diamond. It
Category
2010s Israeli Loose Gemstones
Materials
Diamond
0.50 Carat Square Modified Brilliant Cut Diamond Engagement Ring
Located in London, GB
Here we have a platinum engagement ring featuring a stunning square modified brilliant-cut diamond
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, Platinum
GIA Reporft Certified Cut-Cornered Rectangular Modified Brilliant Diamond
Located in Surfside, FL
GIA report certified cut-cornered rectangular modified brilliant diamond, 1 carat (F color, VS2
Category
20th Century Engagement Rings
Materials
Diamond, Platinum
1pc Sparkling 2.01 Cushion Modified Brilliant Cut Natural Diamond
Located in רמת גן, IL
This stunning cushion modified brilliant cut diamond is a rare and valuable gem. It is perfectly
Category
2010s Israeli Loose Gemstones
Materials
Diamond
1pc Sparkling 1ct Square Modified Brilliant Cut Natural Diamond
Located in רמת גן, IL
This stunning square modified brilliant cut diamond is a rare and valuable gem. It is perfectly cut
Category
2010s Israeli Loose Gemstones
Materials
Diamond
GIA Certified 5 Carat Fancy Yellow Cushion Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
This exquisite ring features a stunning 5 ct Cushion Modified diamond that exudes a captivating
Category
2010s Unknown Contemporary Engagement Rings
Materials
Yellow Diamond, Diamond
GIA Certified Square Modified Brilliant Cut Diamond 2.03 Carat
Located in Surfside, FL
ESTIMATED RETAIL: $45,750.00
G&S PRICE: $34,160.00
GIA certified square modified brilliant cut
Category
21st Century and Contemporary American Modern Engagement Rings
Materials
Diamond, Platinum
1.02ct Cushion Cut Modified Brilliant Light Yellow Diamond Ring
Located in Hong Kong, HK
Center Stone: 1.02ct Cushion Cut Modified Brilliant Diamond with GIA Certificate 7442538933
Center
Category
2010s Hong Kong Modern Fashion Rings
Materials
Yellow Diamond, 18k Gold, White Gold
1 pc Sparkling 3ct Cushion Modified Brilliant Cut Natural Diamond
Located in רמת גן, IL
This stunning cushion modified brilliant cut diamond is a rare and valuable gem. It is perfectly
Category
2010s Israeli Loose Gemstones
Materials
Diamond
GIA Certified Collection 1.26 Carat E VS1 Octagonal Modified Brilliant Diamond
Located in Los Angeles, CA
GIA Certified Diamond
Shape-Octagonal Modified Brilliant
Carat Weight- 1.26
Color- E-
Clarity
Category
21st Century and Contemporary Unknown Modern Loose Gemstones
Materials
Diamond
$19,525
W 0.26 in D 0.17 in L 0.26 in
Denise Roberge Modified 18K Yellow Gold and Diamond Cross Pendant #22327
By Denise Roberge
Located in Washington Depot, CT
Denise Roberge Modified 18K Yellow Gold and Diamond Cross Pendant-
This beautifully crafted cross
Category
20th Century Contemporary Pendant Necklaces
Materials
Diamond, 18k Gold, Yellow Gold
18 Karat White Gold 3.78 Carat Diamond Modified-Hoop Earrings
By Gems Paradise
Located in Jaipur, IN
18 Karat White Gold 3.78 Carat Diamond Modified-Hoop Earrings
The brilliance of diamonds paired
Category
2010s Indian Contemporary Hoop Earrings
Materials
Diamond, 18k Gold, White Gold
GIA Certified 10.03 carats, Square Modified Brilliant Diamond Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
the Cut-Cornered Square Modified Brilliant Diamond is 10.03 carat. The Diamonds colour is W to X Range
Category
21st Century and Contemporary Hong Kong Art Deco Engagement Rings
Materials
Diamond, Platinum
$124,000 Sale Price
20% Off
GIA Certified Fancy Purplish Pink Natural 0.16ct Pear Modified Brilliant Diamond
Located in New York, NY
ITEM DESCRIPTION
ID #: NYC58605
Stone Shape: Pear
Diamond Weight: 0.16ctw
Fancy Color: Fancy
Category
21st Century and Contemporary Loose Gemstones
Materials
Pink Diamond
GIA Certified 1.27 Carat Horse Modified Brilliant L SI1 Natural Diamond
Located in New York, NY
ITEM DESCRIPTION
ID #: NYC56550
Stone Shape: HORSE MODIFIED BRILLIANT
Diamond Weight: 1.27ct
Category
21st Century and Contemporary Loose Gemstones
Materials
Diamond, White Diamond
$5,140 Sale Price
20% Off
W 0.33 in D 0.12 in L 0.32 in
Exquisite Cushion Modified Brilliant Diamond - 3.51 ct - E Color - VVS1 Clarity
Located in רמת גן, IL
3.51 Carat E VVS1 Cushion Modified Brilliant Cut Natural Diamond
This sparkling cushion modified
Category
2010s Israeli Loose Gemstones
Materials
Diamond
Sparkling Cushion Modified Brilliant Cut Natural Diamond in a 1.01 Carat
Located in רמת גן, IL
Sparkling Cushion Modified Brilliant Cut Natural Diamond in a 1.01 Carat H VS2 EX Cut with IGI
Category
2010s Israeli Loose Gemstones
Materials
Diamond
GIA Certified 2.69 Carat Pear Modified Brilliant Chameleon I1 Natural Diamond
Located in New York, NY
ITEM DESCRIPTION
ID #: NYC57369
Stone Shape: PEAR MODIFIED BRILLIANT
Diamond Weight: 2.69ct
Category
21st Century and Contemporary Loose Gemstones
Materials
Diamond
$4,800 Sale Price
20% Off
W 0.03 in L 0.06 in
Dazzling 1.73ct Cushion Modified Brilliant Natural Diamond in 18K Yellow Gold
Located in רמת גן, IL
modified brilliant natural diamond. Its mesmerizing facets dance with light, creating a symphony of
Category
2010s Israeli Engagement Rings
Materials
Diamond, 18k Gold, Yellow Gold
GIA Report Certified Rectangular Modified Brilliant Cut Diamond Ring, 1.49 Carat
Located in Surfside, FL
GIA report certified rectangular modified brilliant cut diamond 1.49 carat (H color, VS2 clarity
Category
20th Century Engagement Rings
Materials
Diamond, Yellow Gold
Classic 18k White Gold .70ct. Cushion Modified Brilliant Solitaire Diamond Ring
Located in רמת גן, IL
Product Details:
~Metal: 18K White Gold
~Main stone: .70ct cushion modified brilliant natural
Category
2010s Israeli Engagement Rings
Materials
Diamond, White Gold, 18k Gold, Gold
5.08 Carat Cushion Modified Brilliant Cut H VS1 Diamond Platinum Engagement Ring
Located in New York, NY
Title:
5.08 Carat Cushion Modified Brilliant Cut H VS1 Diamond Platinum Engagement Ring
Style
Category
20th Century Engagement Rings
Materials
Diamond, Platinum
GIA Certified 1.49 Carat Fancy Chameleon Si2 Modified Shield Step Cut Diamond
Located in New York, NY
ITEM DESCRIPTION
ID #: NYC56544
Stone Shape: MODIFIED SHIELD STEP CUT
Diamond Weight: 1.49 CT
Category
21st Century and Contemporary Loose Gemstones
Materials
Diamond, White Diamond, Brown Diamond
$9,244 Sale Price
20% Off
W 0.25 in D 0.13 in L 0.41 in
GSI Certified Classic Solitaire 0.47ctF I1 Round Modified Brilliant Diamond Ring
By Unbranded
Located in London, GB
This Diamond engagement ring features a 0.47ct Round Brilliant Diamond set in a Platinum. The
Category
2010s English More Rings
Materials
Diamond, Platinum
18 Karat Yellow Gold 2.03 Carat Diamond Contemporary Modified-Hoop Earrings
By Gems Paradise
Located in Jaipur, IN
18 Karat Yellow Gold 2.03 Carat Diamond Contemporary Modified-Hoop Earrings
This glamorous round
Category
2010s Indian Modern Hoop Earrings
Materials
Diamond, Gold, 18k Gold, Yellow Gold
GIA Certified 0.43 Carat Heart Modified Fancy Pink Brown Si2 Natural Diamond
Located in New York, NY
ITEM DESCRIPTION
ID #: NYC57370
Stone Shape: HEART MODIFIED BRILLIANT
Diamond Weight: 0.43ct
Category
21st Century and Contemporary Loose Gemstones
Materials
Diamond
$4,080 Sale Price
20% Off
W 0.22 in D 0.1 in L 0.18 in
5.22 Carat Natural FIY Oval Modified Brilliant Diamond GIA VVS2 Engagement Ring
By SCARSELLI
Located in New York, NY
features a 5.22 carat FIY oval-cut diamond center stone. With VVS2 clarity and a modified brilliant cut
Category
2010s American Contemporary Engagement Rings
Materials
Yellow Diamond, Diamond, Yellow Gold, 18k Gold
GIA 2.01 Carat Cushion Modified Brilliant Cut Diamond 14k White Gold Ring
Located in Beverly Hills, CA
One GIA 2.01 Carat Cushion Modified Brilliant Cut Diamond 14k White Gold Ring. Featuring one GIA
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, Gold, 14k Gold, White Gold
18 Karat Gold 14.12 Carat Briolette and Brilliant-Cut Diamond Modified Hoops
By Gems Paradise
Located in Jaipur, IN
18 Karat Gold 14.12 Carat Fancy Briolette and Brilliant-Cut Diamond Modified Hoop Earrings
Elevate
Category
2010s Indian Contemporary Hoop Earrings
Materials
Diamond, 18k Gold
Roman Malakov 0.54 Carat Modified Pear Shape Diamond Solitaire Pendant Necklace
By Roman Malakov
Located in New York, NY
A simple solitaire pendant necklace, showcasing a 0.54 carat seven-sided pear shape diamond with K
Category
21st Century and Contemporary American Contemporary Pendant Necklaces
Materials
Diamond, 18k Gold, Yellow Gold
14k White Gold 0.34 Carat Modified Step Cut Shield Natural Diamond Necklace
Located in Houston, TX
This unique diamond pendant necklace features a 0.34 carat modified step cut shield natural diamond
Category
21st Century and Contemporary American Pendant Necklaces
Materials
Diamond, Gold, 14k Gold, White Gold
White Gold Blue Topaz & Diamond Ring - 14k Modified Barrel 8.02ctw East-West
Located in Greensboro, NC
: Modified Barrel
Natural Diamonds
Carat(s): .12ctw
Cut: Single
Color: H - I
Clarity: SI1 - SI2
Total
Category
21st Century and Contemporary Cocktail Rings
Materials
Diamond, Topaz, Blue Topaz, 14k Gold, White Gold
Art Deco 18 Karat White Gold Modified Round Brilliant Cut Diamond Ring
Located in Addison, TX
This gorgeous 18 karat white gold Art Deco vintage engagement ring features a modified round
Category
Early 20th Century Unknown Art Deco Engagement Rings
Materials
Diamond, White Gold, 18k Gold
18 Karat Rose Gold 6.38 Carat Ruby and Diamond Modified Hoop Earrings
By Gems Paradise
Located in Jaipur, IN
18 Karat Rose Gold 6.38 Carat Ruby and Diamond Modified Hoop Earrings
This exceptional vivid red
Category
2010s Indian Contemporary Hoop Earrings
Materials
Diamond, Ruby, Gold, 18k Gold, Rose Gold
J. Birnbach 1.20 Carat Marquise Modified Brilliant Cut Diamond Art Deco Ring
Located in New York, NY
This exquisite piece new to the J. Birnbach vault features a 1.20 carat modified marquise brilliant
Category
20th Century American Art Deco Engagement Rings
Materials
Diamond, Platinum
1pc Natural Diamond w/ 2.02 Ct Cushion Modified Brilliant D VVS1 GIA Certificate
Located in רמת גן, IL
The 2.02 carat D VVS1 cushion modified brilliant natural cut diamond is a rare cut and beautiful
Category
2010s Israeli Loose Gemstones
Materials
Diamond
Natural Cushion Modified Brilliant Diamond in a 0.40 Carat H VVS1, GIA Cert
Located in רמת גן, IL
Natural cushion modified brilliant diamond in a 0.40 carat H VVS1 with Beautiful cut and shine
Category
2010s Israeli Loose Gemstones
Materials
Diamond
Natural Cushion Modified Brilliant Diamond in a 2.03 Carat D VS1, GIA Cert
Located in רמת גן, IL
Pair of natural cushion modified brilliant diamond in a 2.03 carat D VS1 with excellent cut and
Category
2010s Israeli Loose Gemstones
Materials
Diamond
Natural Square Modified Brilliant Diamond in a 0.50 Carat G IF, GIA Certificate
Located in רמת גן, IL
Natural square modified brilliant diamond in a 0.50 carat G IF with Beautiful cut and shine. This
Category
2010s Israeli Loose Gemstones
Materials
Diamond
Natural Cushion Modified Brilliant Diamond with a 1.01 Carat I IF, IGI Cert
Located in רמת גן, IL
Natural and rare cut cushion modified brilliant diamond with a 1.01 carat I IF graded by IGI
Category
2010s Israeli Loose Gemstones
Materials
Diamond
0.33ct E/VS1 Square Modified Brilliant Cut Diamond Ring Set in Classic Platinum
Located in London, GB
This classic solitaire ring features a 0.33ct E/VS1 square modified brilliant cut diamond, set in a
Category
2010s British Engagement Rings
Materials
Diamond, Platinum
Dazzling 1pc Natural Diamond w/ 1.7ct Cushion Modified Brilliant D IF GIA Cert
Located in רמת גן, IL
One dazzling cushion modified brilliant cut natural diamond in a 1.7 carat D IF with excellent
Category
2010s Israeli Loose Gemstones
Materials
Diamond
0.61ct D VVS1 GIA Square Modified Solitaire Diamond Ring in 14ct White Gold
By Unbranded
Located in London, GB
14ct White Gold 0.61ct D VVS1 GIA Square Modified Solitaire Diamond Ring.
Additional Information
Category
2010s British Solitaire Rings
Materials
Diamond, White Gold, 14k Gold
12mm x 5.5mm Modified Step Cut Baby Pink Kunzite & Diamond Ring. 18k Rose Gold.
Located in Hong Kong, HK
Here is a beautiful Kunzite and diamond cocktail ring. The ring is set in 18k rose gold and
Category
2010s Hong Kong Cocktail Rings
Materials
Diamond, Kunzite, White Diamond, 18k Gold, Rose Gold, Gold
2 Carat Cushion Modified 'GIA Certified' Solitaire Ring
Located in New York, NY
2.03 ct Cushion Modified Brilliant with G color and VVS-1 clarity (GIA certificate upon request
Category
2010s American Contemporary Engagement Rings
Materials
Diamond, 18k Gold
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Modified Diamond For Sale on 1stDibs
Surely you’ll find the exact modified diamond you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Frequently made of Gold, 18k Gold and Platinum, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect modified diamond may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. A modified diamond from Khai Khai Jewelry, Antinori Fine Jewels and J. Birnbach — each of whom created a beautiful version of this treasured accessory — is worth considering. See these pages for a cushion cut iteration of this accessory, while there are also trillion cut cut and round cut cut versions available here, too. If you’re browsing our inventory for a modified diamond, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.
How Much is a Modified Diamond?
On average, a modified diamond at 1stDibs sells for $13,890, while they’re typically $1,325 on the low end and $415,000 for the highest priced versions of this item.
The Legacy of Diamond in Jewelry Design
Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.
From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!
There are several factors that set diamonds apart from other stones, and these points are important to our gem education.
Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.
In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).
When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement rings, vintage engagement rings or Art Deco engagement rings.
Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.
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